baber/WOPTO huggingface dataset:
Patent GB-1014811-A (GB)
Title: Process and apparatus for cracking hydrocarbons by means of an electric arc
IPC: H05H1/32
Filed: 1961-12-22
Abstract: <PICT:1014811/C4-C5/1> Hydrocarbons are cracked to gaseous unsaturated hydrocarbons by heating hydrogen, which may contain 0-10 gram atoms of carbon in the form of hydrocarbons per normal cubic metre of gas in an electric arc zone 4, part of the hydrogen being introduced along and enveloping the electrodes (channels 6) and part tangentially 13 in the upper part of the arc zone whereby 2-7 kilowatt hours of energy is imparted to each normal cubic metre of hydrogen, passing the hydrogen into an axially symmetrical reaction zone 22 at the opposite end of which 44 hydrocarbons are introduced tangentially so as to follow a helical course towards the hydrogen inlet, increasing the flow of reactants in the direction of hydrogen flow through the reaction zone and passing the reactants into an after-reaction zone 24 then quenching them 27, the reaction time in the reaction and after-reaction zones being 0-5 X 10-3 to 20 X 10-3 second.  The Figure shows an apparatus with three electrodes for three-phase current working; two electrodes for D.C. current may be used (Fig. 2, not shown). The arc zone and after-reaction zone are lined with graphite and have cooled walls. The arc zone may also be of inverted truncated cone shape, the top of the reaction zone being of greater diameter than the exit from the arc zone.  If desired, there may be more than one reaction zone in series, each having its own hydrocarbon inlet and different hydrocarbons may be introduced into each zone. Part of the hydrocarbons to the last zone may be introduced into the after-reaction zone.  By-product hydrocarbons may be recycled.
Patent GB-993904-A (GB)
Title: Bistable transistor circuit
IPC: H03K3/012
Filed: 1962-12-06
Abstract: 993,904. Transistor bi-stable circuits. INTERNATIONAL BUSINESS MACHINES CORPORATION. Dec. 6, 1962 [Dec. 19, 1961], No. 46155/62. Addition to 884,275. Heading H3T. A bi-stable circuit comprises a supply circuit connected to pass current to two supply terminals 14, 15; two pair of transistors 10, 20 and 11, 21 connected such that conduction of one of a pair excludes conduction of the other, the transistors 10, 11 having collector load circuits connected to apply switching signals to transistors 21, 20 respectively; and two input transistors 45, 46 having their emitter-collector paths connected in parallel with those of the transistors 20, 21 respectively. Assume initially transistors 11 and 20 are conducting and transistors 10, 21 are cutoff. If a negative triggering pulse is applied to the base of transistor 46 it becomes conductive taking over the constant current from source 18 via resistor 19 switching off transistor 11. The rise in collector potential of transistor 11 causes transistor 20 to switch-off and the current supplied via resistor 16 transfers to transistor 10 which switches on, resulting in the second stable operating state with transistors 11, 20 cut-off and transistors 10, 21 conducting. Application of a negative triggering pulse to the base of transistor 45 will reset the circuit to its first state.
Patent GB-1146515-A (GB)
Title: Method of making electric bulbs
IPC: H01K3/00
Filed: 1966-10-18
Abstract: 1,146,515. Sealing glass to glass and metal; bulb manufacture. H. SHIRAGAKI. 18 Oct., 1966, No. 46534/66. Heading C1M. In the manufacture of electric light bulbs, each bulb 17 comprising a glass casing 16, a glass base 14, 15 or 38, a filament 13 connected across lead wires 11, 12 which extend through the base 14, 15 or 38 into the casing 16, each bulb 17 is placed into a corresponding hole 19 in a jig 18 of heat-proof material with part of the casing and the glass base extending outside the hole 19, the jig 18 is heated in a furnace to fuse the lead wires 11, 12 to the glass base and to seal the bulb. The base may be formed by a plurality of glass tubes 14, 15 or a disc 38 with holes 36, 37. The jig 18 is placed on a carriage to be pulled through a tube furnace and the tube may be evacuated and an inert gas may be introduced to fill the bulb before sealing.
Patent GB-1404812-A (GB)
Title: Permanent magnet dynamo-electric machine
IPC: H02K1/17
Filed: 1972-10-10
Abstract: 1404812 Permanent magnet dynamoelectric machines FORD MOTOR CO Ltd 10 Oct 1972 [29 Nov 1971] 46606/72 Heading H2A In a permanent magnet dynamoelectric machine, e.g. a vehicle heater fan or wiper blade motor, the stator comprises two U-shaped yoke members 78, 80 and four flat block radially polarized ceramic magnets 70, 72, 74, 76, the magnets having poles of the same polarity facing the rotor 14 and having poles of the opposite polarity engaging flat end portions 84, 86, 92, 90 of the yoke members 78, 80; four flux linkage paths, indicated by chain lines, are thereby formed between the stator and rotor, and two consequent poles are created in central portions 82, 88 of the yoke members 78, 80. The magnets and yoke members are supported within an axially extending part 48 of a plastics or aluminium housing by means of two tabs 62, 64 and four axial pins 52, 54, 56, 58. The commutator (28, Fig 5, not shown) of the machine is energized via two mutually perpendicular brushes (36, 38) and a D.C. source (100).
Patent GB-1148611-A (GB)
Title: Pulse compression radar circuitry
Inventor: DESCHAMPS JACQUES DESIRE
IPC: G01S13/28
Filed: 1961-12-29
Abstract: 1,148,611. Pulse radar. SOC. NATIONALE D'ETUDE ET DE CONSTRUCTION DE MOTEURS D'AVIATION. 29 Dec., 1961 [30 Dec., 1960], No. 46796/61. Heading H4D A radar system of the pulse compression type comprises a modulating and a demodulating filter inserted into the transmission stages and the receiver stages respectively, the filters being characterized in that their group propagation time versusfrequency characteristic curves are parabolas of identical aperture but opposite concavity. The curves are preferably symmetrical about a central frequency which may be the same for each filter. In the system shown in Fig. 3 short pulses from unit 3 are converted to long pulses by the parabolic filter 1 and amplified and possibly altered in frequency in unit 4 before being transmitted. Received pulses are amplified and possibly altered in frequency in unit 7, and converted to short pulses by the parabolic filter 2. If the received signals have undergone a frequency change due to Doppler effect the output of filter 2 contains a residual frequency modulation which is eliminated by a bank of filters 8 which have propagation time versus frequency characteristics that are roughly linear. The bank of filters 8 may comprise two chains of identical cells having propagation times that vary linearly with frequency, the slope of the linear variation being positive for one chain and negative for the other, Fig. 4 (not shown). A plurality of taps are provided in each chain and means are provided for continuously selecting the tap providing the strongest signal. A set of additional delay lines may be inserted in the bank of filters or between the taps and the display equipment to render the overall delay in the circuitry independent of the Doppler shift. The use of the parabolic filters reduces the possibility of confusion between targets having different radial velocities.
Patent GB-470297-A (GB)
Abstract: 470,297. Lavatory basins; coin-freed apparatus. RILEY, G. V. June 5, 1936, No. 15768. [Class 26] [Also in Groups XVII and XVIII] A lavatory basin comprises a recessed portion 49, Fig. 2, a magazine 13 for liners, means which may be coin-freed for successively displacing liners from the magazine for insertion in the recessed portion, and means for ejecting the liners after use. Each liner comprises a sheet of material foldable into a rectangular package and has a pair of side walls 3a, Fig. 14, and a pair of triangular end walls 3d, Fig. 12, which are normally folded inwardly, but are unfoldable to form a fluid-tight container and are collapsable along their centres to facilitate ejection. The liners are introduced into the magazine through a pivoted door 15 and are held between plates 55, 59, the latter of which is spring-pressed. The front liner is ejected upon operation of a lever 20 by members 14 carried by a rod 17 which moves in a slot 26 and is associated by a lost-motion connection with levers 16 secured to a rod 19 rotated by the lever 20. After use the liner is ejected by a bar 4 moving in an arcuate slot 24 through a pedal-operated rod 8 which rotates a shaft 6 against a spring 81 and rocks arms 5 connected to the bar. The basin comprises front and end walls 1, 2 joined by sides 49 and has drain and overflow apertures 47, 1a, 2a and an ejection aperture 23 with edges shaped as shown to facilitate the draining of the liners. The whole is encased in a housing 10 having a trapped outlet 86 and a trough 11 for the used liners. Several basins may be arranged in conjunction. The apparatus may be coin-freed and to this end the lever 20 is normally locked by a lever 33, Fig. 15, which may be withdrawn by a lever 45 when a bar 41 to which it is pivoted is operatively connected by a coin 36 to a bar operated by a knob 74. The coin is introduced into a shoot 35 and is retained by a member 40a. A retaining-pawl 43 is provided and is released for the return of the parts by the lever 20 which towards the end of its movement engages an extension of the pawl. An arm 28 is provided for operating the lever 37 in emergency.
Patent GB-1451620-A (GB)
Title: Record player
IPC: G11B19/265
Filed: 1973-10-10
Abstract: 1451620 Gramophone switching device  PHILIPS ELECTRONIC & ASSOCIATED INDUSTRIES Ltd 10 Oct 1973 [13 Oct 1972] 47288/73 Heading G5R A switching device mounted on the deck plate of a gramophone includes a latched "off" position, latched positions to either side of the "off" position for respectively controlling the gramophone to a speed of 33 rpm and a correct pick-up arm set down position for records of 30 cm diam. and to a speed of 45 rpm and a correct pick-up arm set down position for records of 17 cm diam., and an unlatched start position S associated with each latched speed position on its side remote from the off position. The switching device includes an actuating member coupled to a rotary drum 7 beneath the deck plate which is latched in its zero position by engagement of a roller 11 in a detent 9 in the drum. The roller is mounted on a spring-loaded slide 13, which when the device is switched from its off position, is moved to the right thereby allowing an idler wheel mounted on a spindle 21 to move into engagement with the motor shaft and turn-table. In e.g. the 33 rpm position the device is latched by a roller 27 on arm 25, which is spring urged towards the drum and engages in a detent 33. In this position electric switch 55 is not engaged by cam 53 so the motor rotates at 33 rpm and slide 49 is moved by leg 45 of spring 41 so that its end 65 controls during the subsequent start operation the position of member 61 and hence the set down position of the stylus on pick-up arm 5 at the start of a 30 cm record. The detent 33 is of sufficient length to allow the device to be turned to a start position beyond the latched position in which rod 67 triggers the start sequence including movement of the pick-up arm to its set down position. The device is moved to the start position against the action of spring 41 which returns the drum to the latched 33 rpm position on release of the actuating member.
Patent GB-1068200-A (GB)
Title: High voltage semiconductor device
IPC: H01L21/00
Filed: 1964-11-23
Abstract: 1,068,200. Semi-conductor devices. INTERNATIONAL RECTIFIER CORPORATION. Nov. 23, 1964 [Nov. 26, 1963], No. 47619/64. Heading H1K. A controlled rectifier leaving the structure shown is formed by taking an N-type silicon wafer, diffusively doping its entire surface to form a surrounding P-type layer, etching a depression 22 in one major surface of the P-type layer, epitaxially depositing N-type silicon in the depression, and finally removing the P-type material from the periphery of the wafer. Subsequently electrodes are applied: an alloyed-on gold or gold-antimony foil to the epitaxial layer; an alloyed on three layer electrode to the base of the wafer, consisting of layers of aluminium-silicon alloy, molybdenum and silver; and a wire constituting a gate electrode to the P-type region surrounding the epitaxial layer in the depression. An annular groove 70 (Fig. 13, not shown) may be etched in the upper surface of the wafer and cut through the wafer junctions in the manner described in Specification 1,068,199.
Patent GB-1006342-A (GB)
Title: Improvements in cooling installations for high-speed aircraft
IPC: B64D41/00
Filed: 1962-12-18
Abstract: 1,006,342. Ram air turbines. SOC. D'EXPLOITATION DES MATERIALS HISPANOSUIZO. Dec. 18, 1962 [Dec. 21, 1961; Nov. 7, 1962], No. 47805/62. Heading F1G. [Also in Division F4] In an aircraft cooling system comprising a ram air inlet 2, an expansion turbine 6, a heat exchanger 7 in which a fluid circulating in a closed system is cooled, a compressor 9 driven by the turbine and an air outlet 10, power derived from the air flowing through the system is used to drive an alternator 12. As shown in Fig. 2 the rotational speed of the turbine is kept constant by a device 22 which is responsive to the rotational speed of the alternator and alters the setting of vanes 5 at the turbine inlet; thus a constant frequency output is obtained from the alternator. In the embodiment of Fig. 3 an additional turbine 24 is provided upstream of turbine 6 and drives the alternator 12 via a shaft 26 separate from the shaft 8 connecting turbine 6 and compressor 9. In Fig. 1 (not shown) the vanes 5 and 11 are fixed and the alternator output is supplied to a frequency regulating device while in Fig. 4 (not shown) the alternator is driven by the additional turbine via a shaft extending coaxially through shaft 8.
Patent GB-1134249-A (GB)
Title: Improved coating process
Inventor: WISEMAN THOMAS JAMES
IPC: C09C3/06
Filed: 1966-10-25
Abstract: 1,134,249. Coating metal oxides. BRITISH TITAN PRODUCTS CO. Ltd. 10 Aug., 1967 [25 Oct., 1966; 14 Feb., 1967], Nos. 47832/66 and 7086/67. Heading C1A. Metal oxide particles are coated by forming an aqueous solution of a hydrolysable metal salt, raising the pH until the precipitate forms, heating to redissolve the precipitate, mixing the resulting metal-containing solution with insoluble metal oxide particles, precipitating hydrous metal oxide from the solution upon the particles. In this way titanium dioxide can be coated with alumina. The metal salt preferably contains a monovalent anion, e.g. aluminium trichloride or nitrate but metal salts containing polyvalent anions, e.g. aluminium sulphate, may also be used. The initial aqueous solution conveniently contains 0À5 to 200 grams/litre of the salt. The pH is then raised to 3.8 to 5À0 by adding a watersoluble alkali. The mixture is then heated to 25 to 90 C. to redissolve the precipitate for 5 to 200 minutes. The solution may then be diluted and the insoluble metal oxide particles suspended in the solution. The pH is slowly raised to at least 5.7 over 0.25 to 10 hours. More alkali is preferably added to give a pH of at least 6.5 over 1 to 3.hours, after which the pH is adjusted to 7 to 8.5. The temperature during the pH adjustments is 10 to 50 C. The coated metal oxide may be recovered by filtration, decantation or by centrifuging. The hydrous metal oxide may alternatively be precipitated by the passage of an electric current through the suspension and the coated particles recovered by means of electrophoretic separation, or by the simultaneous mixing of the metal oxide particles, the metal containing solution and alkali.
Patent GB-958346-A (GB)
Title: Improvements in or relating to synthetic resin compositions
IPC: C08G63/682
Filed: 1962-12-19
Abstract: Synthetic non-flammable resins having good insulating properties are formed by preparing an unsaturated non-linear condensation product of polyester character having a minimum content of 25% by weight of one or more halogenated aromatic or cyclic polycarboxylic acid residues by heating together in the absence of air and for a part of the heating period in vacuo, a mixture consisting of or including:  (a) at least one unsaturated polycarboxylic acid or anhydride thereof, (b) at least one halogenated aromatic or cyclic polycarboxylic acid or anhydride thereof, in an amount such that the final condensation product has a minimum content of 25% by weight of one or more halogenated aromatic or cyclic polycarboxylic acid residues,  (c) at least one polyhydric alcohol,  (d) at least one polymeric fatty acid in a total amount of 0.5 to 5% by weight,  (e) at least one trifunctional compound in a total amount of 0.5 to 15% by weight, and (f) at least one acid semi-ester of an unsaturated polycarboxylic acid and a mono- or polyhydric cyclic alcohol; said condensation product prepared from (a) to (f) is then dissolved in a liquid unsaturated polymerizable monomer or a mixture of such monomers. The solution of the condensation product is then mixed with a solution in a liquid unsaturated polymerizable monomer or a mixture of such monomers, of one or more resinous aromatic halogen-substituted hydrocarbons softening above 50 DEG C., in an amount such that the proportion of halogenated aromatic hydrocarbon in the total solids content of the mixture is between 1 and 25% by weight. A hardener may then be added. In the examples: (1) a polyester condensation product is prepared from maleic anhydride; (3), (51-dihydroxydiethyl ether; trimethylolpropane; ethylene glycol; maleic acid monoester of hexahydrocresol; phthalic anhydride; benzoic acid; tetrachlorophthalic anhydride and, a mixture of dimeric and trimeric fatty acids. is dissolved in styrene containing an inhibitor This solution is then mixed with a styrene solution of a chlorinated resin-like solid mixture of aromatics softening above 65 DEG C. and cobalt isooctanate and tertiary butyl perisooctanate in dimethyl phthalate is added; (2) The polyester condensation product may be mixed with antimony trioxide and used to coat electric coils; and (3) the mixture of solutions of Example 1 may have added to it fine quartz flour mixed with antimony trioxide.
Patent GB-1026776-A (GB)
Title: Substituted hydrazobenzenes
Inventor: JUCKER ERNST
Filed: 1962-11-05
Abstract: p-Trifluoromethyl-azobenzenes wherein there is at the p1-position a hydrogen or halogen atom or an hydroxy, alkoxy (1-4 C), acyloxy (2-4 C), amino or acylamino (2-4 C) group are obtained:  the p1-amino-compound, prepared by coupling using anilino-methanesulphonic acid and then removing the acid radical, leads to p1-acylamino compounds and also, by treatment of its diazonium salt solution with hypophosphoric acid, to the p1-unsubstituted compound; the p1-hydroxy-compound, prepared by coupling using phenol, leads to p1-alkoxy and p1-acyloxy compounds; the p1-halocompounds are prepared by condensing trifluoromethylaniline and a nitrosohalobenzene.ALSO:The invention comprises compounds of formula <FORM:1026776/C2/1> where R is hydrogen, halogen, alkoxy (1-4C) acyloxy (2-4C) or acylamino (2-4C); and their preparation by catalytic reduction of p-CF3-p1-R-azobenzenes.  p-CF3-p1-hydroxy or amino-azobenzenes are also prepared.
Patent GB-976785-A (GB)
Title: Improvements in or relating to twisting machines executing a false twist
IPC: D02J13/00
Filed: 1961-12-21
Abstract: 976,785. Yarn heaters. BILLION & CIE. Dec. 21, 1962 [Dec. 22, 1961], No. 48433/62. Headings DID and D1F. A heater 5 for a false-twisting machine includes a removable tubular yarn guide 8 having a threading slot, which extends throughout its length, and is adapted to be closed by radial pressure exerted on the tube and/or by engagement with a member-e.g. a ridge-of appropriate dimensions provided in the heater. The slot may be parallel to the axis of the tube, or be helical or otherwise curved. The tube may be positioned at the outlet of the heater or may extend into the tube either separately or in combination with a further tubular guide 7.
Patent GB-1069610-A (GB)
Title: Improvements in or relating to the forming of workpieces
IPC: C07D295/14
Filed: 1965-11-17
Abstract: 1,069,610. Electromagnetic shaping. GENERAL DYNAMICS CORPORATION. Nov. 17, 1965 [Nov. 30, 1964]. No. 48328/65. Heading B3Q. A conductive workpiece is electromagnetically deformed by placing it within a generally annular conductive fieldshaper 12 and passing current pulses through spiral coils 20 and 22 disposed on each side of the field-shaper. The field-shaper is formed in two segments (14) and (16) (Fig. 1, not shown). by an insulating strip (50), thereby allowing the segments to be positioned around a large workpiece which is unable to pass axially through the space 18 defined by the segments. The coils are mounted in insulating plates 36 and 38, while further insulating plates 40 and 42 separate the coils from metal-supporting plates 32 and 34. Pneumatic cylinders (54) urge the segments together. One of the segments may be laterally slidable from the supporting structure, or the two segments may be hinged together at their outer edges.
Patent GB-1048309-A (GB)
Title: Improvements in or relating to a swimming flipper
IPC: A63B31/11
Filed: 1964-12-01
Abstract: 1,048,309. Swimming fins. L. FERRARO. Dec. 1,1964 [Dec. 5, 1963; Feb. 28, 1964; April 15, 1964], No. 48844/64. Heading A6D. A swimming flipper comprises a shoe portion and a fin position, the two portions being made of different materials and being connected together by interengaging projections and sockets located laterally of the flipper. Preferably the slide portion 2 is made of rubber, and the fin portion 3 of metal, plastic, or plastics reinforced with metal, the fin comprising extensions 4 which engage in sockets on the shoe portion. Also the sole of the shoe portion is preferably provided with projections engaging in apertures formed at the inner end of the fin portion, and the fin portion may further comprise a strap 5 for assisting in locating the shoe relative thereto. The projections 4 may extend through the said sockets on the shoe portion and be fastened to the shoe portion at their free ends. The fastening of the two portions may remain releasable, or may be rendered permanent by heat and pressure welding or with adhesives.
Patent GB-1157435-A (GB)
Title: Improvements in and relating to Electrical Insulating Compounds
Inventor: MOORE FRANCIS JOHN
IPC: H02G15/00
Filed: 1965-11-17
Abstract: 1,157,435. Encapsulating cable joints and terminations. BRITISH INSULATED GALLENDER'S CABLES Ltd. 16 Nov., 1966 [17 Nov., 1965], No. 48855/65. Heading H2E. [Also in Division H1] A method of filling a cavity surrounding a cable joint or termination comprises first partly filling the cavity with lumps of a solid, substantially non-porous material then filling the remainder of the cavity with a liquid or viscous insulating compound which hardens to a solid state and which adheres to the lumps without reacting with them. Preferably the lumps are calcined flint chippings of a size retained by a <SP>1</SP>/ 8  inch mesh and the compound is a self-curing acrylic resin described in Specification 1,157,436 but flint or granite, and epoxy, polyester, or polyurethane resins are also suitable. In one example, a polystyrene box surrounding a joint between 1À1 kV cables is filled with 36-40 parts by weight of calcined flint chippings and 18 parts by weight of the acrylic resin referred to above. In a second example, a concrete enclosure for a lead-sleeved joint between 33 kV cables is filled with calcined flint chippings retained by a <SP>1</SP>/ 2  inch mesh but passed by a 1<SP>1</SP>/ 2  inch mesh, and an Asphaltic or Trinidad Bitumen base compound. Preferably, the lumps occupy one to three times the volume occupied by the compound, have a greater specific gravity than the compound and have a low specific heat and heat conductivity to reduce the rate of hardening.